jsrsasign
opensource free pure JavaScript cryptographic library supports RSA/RSAPSS/ECDSA/DSA signing/validation, ASN.1, PKCS#1/5/8 private/public key, X.509 certificate, CRL, OCSP, CMS SignedData, TimeStamp and CAdES and JSON Web Signature(JWS)/Token(JWT)/Key(JWK)
ngx-sign-pad
An Angular wrapper for [szimek/signature_pad](https://www.npmjs.com/package/signature_pad).
eosjs-ecc
Elliptic curve cryptography functions
@gappl/ngx-sign-pad
An Angular wrapper for [szimek/signature_pad](https://www.npmjs.com/package/signature_pad).
paytmchecksum
This is for paytm checksum creation and verification in node